Resource Type
Serial/Series Title
NACA Research Memorandums
155
Atomic Energy Commission Reports
64
NACA Technical Reports
35
Hanford Works Reports
26
HW (Series)
20
Oak Ridge National Laboratory Reports
19
University of California Radiation Laboratory Reports
16
BNL (Series)
12
Brookhaven National Laboratory Reports
12
GJBX
9
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354 Matching Results
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Low-Speed Investigation of a 0.16-Scale Model of the X-3 Airplane: Longitudinal Characteristics
Report presenting a wind-tunnel investigation of the low-speed static longitudinal characteristics of a model of the X-3 airplane with the wing flaps neutral and deflected. Results regarding those characteristics with the flaps neutral, with the flaps fully deflected, in the presence of a ground plane, with the flaps partially deflected, and effect of miscellaneous changes of the model are provided.
Date:
September 8, 1950
Creator:
Delany, Noel K. & Hayter, Nora-Lee F.
Object Type:
Report
System:
The UNT Digital Library
Lawrence Radiation Laboratory Medical and Health Physics Quarterly Report: July - September 1950
The following quarterly report covers the period of July through September of 1950, split into three reports discussing the metabolic properties of plutonium and allied materials, biological studies of radiation effects, and health chemistry and physics.
Date:
November 8, 1950
Creator:
Hamilton, J. G.; Lawrence, J. H. & Garden, N.
Object Type:
Report
System:
The UNT Digital Library
Propeller Section Aerodynamic Characteristics as Determined by Measuring the Section Surface Pressures on an NACA 10-(3)(08)-03 Propeller Under Operating Conditions
Report presenting a wind-tunnel investigation to determine propeller section aerodynamic characteristics by measuring surface pressure distribution on the airfoil sections of a rotating propeller. The pressures were measured at nine radial sections of the NACA 10-(3)(08)-03 two-blade propeller. Results regarding sectional critical Mach number, and aerodynamic coefficients are also presented.
Date:
November 8, 1950
Creator:
Evans, Albert J.
Object Type:
Report
System:
The UNT Digital Library
Low-Speed Investigation of the Effect of Several Flap and Spoiler Ailerons on the Lateral Characteristics of a 47.5 Degree Sweptback-Wing-Fuselage Combination at a Reynolds Number of 4.4. X 10(6)
Report presenting an investigation of the low-speed lateral characteristics of a 47.5 degree sweptback-wing-fuselage combination with several flap and spoiler aileron arrangements. Results regarding aileron control characteristics, spoiler-control characteristics, and a comparison of the two are provided.
Date:
December 8, 1950
Creator:
Pasamanick, Jerome & Sellers, Thomas B.
Object Type:
Report
System:
The UNT Digital Library
Calibration of the 305 pile for graphite testing
From summary: "The methods of calibrating the 305 pile for impurities and density differences in graphite are reviewed and calibration constants are calculated theoretically."
Date:
January 8, 1951
Creator:
Duvall, George E.
Object Type:
Report
System:
The UNT Digital Library
Estimated deceleration of airplane nose section jettisoned at various altitudes and airspeeds
Memorandum presenting calculations made to determine the deceleration at any time after jettisoning of an airplane nose-section design typical of those which have been proposed as escape devices for high-speed airplanes. The decelerations were determined by two methods, one using successive approximations requiring graphical integration and the other giving reasonably close approximations by direct computation.
Date:
January 8, 1951
Creator:
Scher, Stanley H.
Object Type:
Report
System:
The UNT Digital Library
Longitudinal-control effectiveness and downwash characteristics at a Mach number of 1.24 of a 1/30-scale semispan model of the Bell X-5 airplane as determined by the NACA wing-flow method
Report presenting an investigation at a Mach number of 1.24 using the NACA wing-flow method to determine the longitudinal-control effectiveness and downwash characteristics of a scale semispan model of the variable-sweep Bell X-5 airplane with the wind swept back at several different degrees. Lift, drag, and pitching moments were obtained for various angles of attack for several horizontal tail settings and with the tail off for each angle of sweep of the wing.
Date:
January 8, 1951
Creator:
Sawyer, Richard H.; Kennedy, Robert M. & Morris, Garland J.
Object Type:
Report
System:
The UNT Digital Library
Physics Division Quarterly Progress Report for Period Ending September 20, 1950
Technical report covering experiments to measure the resonance and absorption of neutrons in U238 cylinders. Report also discusses control problems connected to the Bulk Shielding Facility and work on MTR controls.
Date:
January 8, 1951
Creator:
Sneil, A. H. & Wollan, E. O.
Object Type:
Report
System:
The UNT Digital Library
Calculation of k-o in a Uranium-Graphite Lattice
Since the 25 content of the uranium to be used in a MTA multiplying lattice is quite uncertain at present, it is necessary to assume various degrees of depletion in order to estimate the multiplication constant K-o and the production of 49 in an infinite uranium-graphite lattice
Date:
February 8, 1951
Creator:
Adelman, F.
Object Type:
Report
System:
The UNT Digital Library
Factors Affecting the Starting Characteristics of Gas-Turbine Engines
"This report summarizes the effects of fuel volatility and engine design variables on the problem of starting gas-turbine engines at sea-level and altitude conditions. The starting operation for engines with tubular combustors is considered as three steps; namely, (1) ignition of a fuel-air mixture in the combustor, (2) propagation of flame through cross-fire tubes to all combustors, and (3) acceleration of the engine from windmilling or starting speed to the operating speed range. Pertinent data from laboratory researches, single-combustor studies, and full-scale engine investigations are presented on each phase of the starting problem" (p. 1).
Date:
February 8, 1951
Creator:
Lewis Laboratory Fuels Panel
Object Type:
Report
System:
The UNT Digital Library
Metallurgy Division Quarterly Progress Report for Period Ending October 31, 1950
Technical report outlining the rate of production of modified MTR type fuel elements for the Bulk Shielding Facility has proceeded. Includes compatibility test that were started as a guide in the selection of materials suitable for fuel-element fabrication. [From Summary]
Date:
February 8, 1951
Creator:
Frye, J. H.; Miller, E. C. & Bridges, W. H.
Object Type:
Report
System:
The UNT Digital Library
Chemical Technology Division Pilot Plant Section Report for November, 1950- January, 1951
Technical report presenting a summary of the flowsheets, equipment, and progress for the Oak Ridge National Laboratory (ORNL) pilot plant development of the Purex Process and of the ORNL Metal Recovery Program. As of this report, conversion of the Purex pilot plant equipment in Buildings 3019 and 3503 is 90% complete. The building structure for the ORNL Waste Metal Recovery plant had been completed, and 15% of the process equipment had been installed. The first hot runs for this plant were scheduled for June, 1951. [From Abstract; Introduction]
Date:
March 8, 1951
Creator:
Jackson, H. K.
Object Type:
Report
System:
The UNT Digital Library
Heat and Free Energy of the Neptunium (IV)-(V) Couple in Perchloric Acid
Abstract: "The potential of the Np(IV)-Np(V) couple is not directly measurement since the couple does not establish reversible equilibrium at an inert electrode. Reproducible potential measurements were obtainable, however, in solutions containing Np(IV), Np(V), Pe(II), and Pe(III) ions in oxidation-reduction equilibrium. The expected fourth power hydrogen ion dependence of the Np(IV)-Np(V) couple was confirmed over the range 0.25-1.0 molar perchloric acid concentration. The heat of the reaction NpO2+ + 1/2 H2 + 3H+ = Np-(+4) + 2 H2O in 1 molar perchloric acid solution was determined from the electromotive force temperature coefficient to be -36.3 +/- 0.3 kg.-cal. The formal potential of the Np(IV)-Np(V) couple is -0.746 v. at 25 degrees in 1 molar perchloric acid solution."
Date:
March 8, 1951
Creator:
Magnusson, L. B. & Huizenga, John R.
Object Type:
Report
System:
The UNT Digital Library
The Preparation, Physical Properties, and Heats of Combustion of Four Alkylsilanes
Memorandum presenting a group of alkylsilanes consisting of monoethylsilane, diethylsilane, and trimethylsilane prepared in 65- and 90-percent yield by reduction of the respective alkylchlorosilanes with either lithium hydride or lithium aluminum hydride. The boiling points, densities, refractive indices, and freezing points were determined and presented with a survey of literature values.
Date:
March 8, 1951
Creator:
Tannenbaum, Stanley & Murphy, Maurice F.
Object Type:
Report
System:
The UNT Digital Library
An empirically derived basis for calculating the area, rate, and distribution of water-drop impingement on airfoils
From Summary: "An empirically derived basis for predicting the area, rate, and distribution of water-drop impingement on airfoils of arbitrary section is presented. The concepts involved represent an initial step toward the development of a calculation technique which is generally applicable to the design of thermal ice-prevention equipment for airplane wing and tail surfaces. It is shown that sufficiently accurate estimates, for the purpose of heated-wing design, can be obtained by a few numerical computations once the velocity distribution over the airfoil has been determined. The calculation technique presented is based on results of extensive water-drop trajectory computations for five airfoil cases which consisted of 15-percent-thick airfoils encompassing a moderate lift-coefficient range."
Date:
May 8, 1951
Creator:
Bergrun, Norman R.
Object Type:
Report
System:
The UNT Digital Library
Sound from a two-blade propeller at supersonic tip speeds
Report presenting sound measurements at static conditions for a two-blade, 47-inch-diameter propeller over a range of tip Mach numbers. For comparison, spectrums have been obtained at both subsonic and supersonic tip speeds. Results regarding the experimental results and comparison with theory are provided.
Date:
May 8, 1951
Creator:
Hubbard, Harvey H. & Lassiter, Leslie W.
Object Type:
Report
System:
The UNT Digital Library
Lift, drag, and pitching moment of low-aspect-ratio wings at subsonic and supersonic speeds: Plane triangular wing of aspect ratio 4 with 3-percent-thick, biconvex section
Report presenting a wing-body combination with a plane triangular wing of aspect ratio 4 and 3-percent-thick, biconvex sections in streamwise planes at subsonic and supersonic Mach numbers. Lift, drag, and pitching moment are presented for a range of Mach and Reynolds numbers.
Date:
June 8, 1951
Creator:
Heitmeyer, John C.
Object Type:
Report
System:
The UNT Digital Library
The Synthetic Liquid Fuel Potential of Missouri
Report documenting the suitability of Missouri for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.
Date:
June 8, 1951
Creator:
Ford, Bacon, and Davis
Object Type:
Report
System:
The UNT Digital Library
Comparison of airfoil sections on two triangular-wing-fuselage configurations at transonic speeds from tests by the NACA wing-flow method
Report presenting tests using the NACA wing-flow method at a range of Mach numbers to determine the aerodynamic characteristics of four triangular-wing-fuselage models. Measurements of the normal force, chord force, and pitching moment for various angles of attack. Two models had wings of aspect ratio 2.31, one with an NACA 65-009 airfoil section and one with a 9-percent-thick biconvex section, and two with wings of aspect ratio 4, one with an NACA 65-006 airfoil and one with a 6-percent-thick double-wedge airfoil.
Date:
August 8, 1951
Creator:
Hall, Albert W. & McKay, James M.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Experimental Investigation of Flutter Characteristics of M and W Wings
Report presenting the results of nine experimental flutter tests involving two flat-plate models and two rib and spar models of NACA 0012 airfoil sections in order to give a comparison of the flutter characteristics of wings with M and W type plan forms. The W plan form generally gave higher flutter speeds than the M plan forms.
Date:
August 8, 1951
Creator:
Herr, Robert W.
Object Type:
Report
System:
The UNT Digital Library
The Pressures and Temperatures Developed During the Reduction of Uranium Tetrafluoride by the Bomb Method
The pressure and temperature cycles developed during the bomb reduction of uranium tetrafluoride by calcium have been determined. Data for the 250, 500, and 1000 gram scale reductions are given, and the apparatus used is described.
Date:
August 8, 1951
Creator:
Hayward, B. R.
Object Type:
Report
System:
The UNT Digital Library
Analytical Chemistry Division Quarterly Progress Report for Period Ending March 26, 1951
Technical report covering experiments happening on the Analytical Chemistry Division's sites at the Oak Ridge National Laboratory. Includes information on ionic analyses, radio-chemical analyses, spectrochemical analyses, service analyses, inorganic preparations, analytical chemical control of homogeneous reactor solution, optical and electron microscopy, and service analyses for the period ending March 26, 1951. [From Abstract]
Date:
October 8, 1951
Creator:
Kelley, M. T. & Susano, C. D.
Object Type:
Report
System:
The UNT Digital Library
Damping in Roll of Rocket-Powered Test Vehicles Having Swept, Tapered Wings of Low Aspect Ratio
"Flight tests of rocket-powered models have been conducted to determine the damping in roll of a group of swept, tapered wings designed for flight in the transonic speed region. The Mach number range of these tests was from approximately 0.7 to 1.4. The experimental damping in roll for all configurations was less than predicted by linearized theory throughout the Mach umber range of these tests. The only wing in this group that experienced an appreciable transonic lateral trim change was the one with a 7-percent-thick circular-arc airfoil section" (p. 1).
Date:
October 8, 1951
Creator:
Sanders, E. Claude, Jr. & Edmondson, James L.
Object Type:
Report
System:
The UNT Digital Library
Derivation of the Equations of Motion of a Symmetrical Wing-Tip-Coupled Airplane Configuration With Rotational Freedom at the Junctures
"The method of Lagrange multipliers is used to take account of the dynamic effects of the constraints at the wing tips when two identical airplanes are coupled to the wing tips of a "mother" airplane. The resulting equations of motion of this symmetrical configuration are derived for one, two, or three degrees of rotational freedom at each joint" (p. 1).
Date:
October 8, 1951
Creator:
Schy, Albert A.
Object Type:
Report
System:
The UNT Digital Library